Design method of gear shaving cutter for helical gear finish turning with 0° tooth profile angle

Abstract

The invention discloses a design method of a 0-degree tooth profile angle helical tooth finish turning gear shaving cutter. The design method comprises the following steps of: (1) confirming a radius Rb of a base circle: according to the structure of a used machine tool and a cutter, confirming the Rb; (2) selecting value of a base circle helical angle beta b 0: beta b 0 being from 10 degrees to 20 degrees; (3) confirming the helical direction which is consistent with the helical direction of a machining gear; (4) preliminarily calculating the number of teeth z0 of the cutter; (5) accounting an actual base circle helical angle; (6) confirming a radius R of an outer circle: R=R*b+ delta R; (7) confirming the width B of the cutter; (8) confirming a cutter tooth groove spiral lead P; (9) confirming a cutter blade normal relief angle alpha N; (10) confirming a cutter tooth groove normal section angle epsilon, and value of the epsilon ranging from 25 degrees to 30 degrees; (11) confirming the tooth top width b of the cutter tooth: b=mn; (12) confirming the groove depth h of the cutter tooth: h= (2.25-2.3)mn; (13) confirming the radius r1 of a tooth top arc of the end face: r1=0.25mn; and (14) confirming the radius r2 of a groove bottom arc of the cutter tooth: r2= (0.25-0.3)mn.

Description

technical field [0001] The invention relates to a design method of a finish car gear shaving cutter, more precisely, the present invention relates to a design method of a 0° profile angle helical finish car gear shaving cutter. Background technique [0002] The fine car gear shaving method appeared after the general gear shaving method that has been widely used at present, and the history is not too long. ) and the gear to be machined are processed on the shaving tooth surface, still constitute a spatial cross-axis helical gear meshing transmission, and the tooth surface is finished by means of the relative sliding speed of the helical gear point mesh and the tooth surface, but there are significant differences between the two. [0003] 1. Generally, the tooth side of the shaving knife (that is, the flank of the tool) is provided with a chip groove (that is, the rake face of the tool) to form the cutting edge. The point on the cutting edge can only be cut to form the tooth s...

AI Technical Summary

Problems solved by technology

[0012] The technical problem to be solved by the present invention is to overcome the complex design and calculation, complex manufacturing and sharpening, theoretical configuration error, complex structure and high cost of inserting cutter teeth, and limited processing gear types and modulus existing in the prior art. and other problems, a design method of 0° tooth profile angle helical gear finish turning shaving cutter is provided

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